A self-bleeding diesel filter

Abstract

The utility model discloses a kind of self-bleeding diesel oil filters, including shell, the top of the shell is clamped with sealing seat, the top of the sealing seat is fixedly connected with fixed ring, the bottom of the sealing seat is fixedly connected with top cover.The utility model relates to the technical field of diesel oil filter, the self-bleeding diesel oil filter, by the cooperation of conveying seat, exhaust hole, conveying pipe, annular base and gas ring, gas in diesel oil is exported, effectively avoid the pressure instability problem caused by gas accumulation in the filter inside, not only reduce the impact and vibration of pressure fluctuation to filter core, avoid filter core to appear breakage, deformation and other damage conditions, prolong the service life of filter core, also can make diesel oil keep stable, uniform flow path in filter inside, ensure that diesel oil is fully and evenly through filter core, substantially improve the interception efficiency of filter core to impurity, lay a solid foundation for the stable operation of engine.

Description

Technical Field

[0001] This utility model relates to the field of diesel filter technology, specifically a self-exhausting diesel filter. Background Technology

[0002] A diesel fuel filter is an engine protection device used to filter impurities and moisture from diesel fuel.

[0003] Traditional diesel filters remove solid particles, gum, and moisture from diesel fuel through physical interception, preventing impurities from entering precision components such as high-pressure fuel pumps and fuel injectors.

[0004] However, in actual use, air can easily get into diesel fuel during storage, transportation, and filter operation. The air accumulated inside the filter may cause unstable internal pressure. When the fuel flows, pressure fluctuations will cause additional impact and vibration to the filter element. Under such unstable pressure environment for a long time, the structure of the filter element is easily damaged, such as cracking or deformation, thereby reducing the filtration effect of the filter element and shortening its service life. Furthermore, the presence of air will disrupt the normal flow path of diesel fuel inside the filter, preventing diesel fuel from passing through the filter element evenly. This will greatly reduce the filter element's efficiency in intercepting impurities and pose a serious threat to precision components such as the engine's high-pressure fuel pump and fuel injectors. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a self-exhausting diesel filter, which solves the problem that in actual use, diesel fuel is easily mixed with air during storage, transportation, and filter operation. The air accumulated inside the filter may cause unstable internal pressure. When fuel flows, pressure fluctuations will generate additional impacts and vibrations on the filter element. Under such unstable pressure environment for a long time, the filter element structure is easily damaged, such as cracking or deformation, thereby reducing the filtration effect of the filter element and shortening its service life. Furthermore, the presence of air will disrupt the normal flow path of diesel fuel inside the filter, preventing diesel fuel from passing through the filter element evenly, greatly reducing the filter element's interception efficiency of impurities, and posing a serious threat to precision components such as the engine's high-pressure fuel pump and fuel injectors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-exhausting diesel filter, comprising a housing, a sealing seat snapped onto the top of the housing, a fixing ring fixedly connected to the top of the sealing seat, a top cover fixedly connected to the bottom of the sealing seat, the outer wall of the top cover fitting against the inner wall of the housing, a conveying seat sleeved onto the bottom of the top cover, an exhaust hole provided on the side wall of the conveying seat, a conveying pipe fixedly connected to the bottom of the conveying seat, an annular base fixedly connected to the side wall of the conveying seat, an air-gathering ring fixedly connected to the inner wall of the annular base, and the inner wall of the air-gathering ring fitting against the outer wall of the conveying seat.

[0007] Preferably, both sides of the top of the top cover are connected to oil inlet seats, the inner walls of the two oil inlet seats are snapped with connecting rings, the inner walls of the two connecting rings are snapped with barrier nets, the top of the two barrier nets are provided with annular grooves, the two annular grooves are respectively opened on the inner walls of the two connecting rings, and the outer wall grooves of the two connecting rings are fixedly connected with magnetic components.

[0008] Preferably, the top of the top cover has an oil drain port at its center, the oil drain port extends into the interior of the conveying seat, and a sealing ring is fixedly connected to the top of the conveying seat, the inner wall of the sealing ring being fitted onto the outer wall of the top cover.

[0009] Preferably, a first connecting plate is fixedly connected to the outer wall of the annular base, a second connecting plate is provided below the first connecting plate, a filter screen is provided between the first connecting plate and the second connecting plate, the filter screen is sleeved on the outer wall of the conveying seat and the conveying pipe, and a filter element is sleeved on the outer wall of the filter screen.

[0010] Preferably, the top and bottom of the filter screen and the filter element are fixedly connected to a fixing plate. The top of one fixing plate is fixedly connected to the bottom of the first connecting plate, and the inner wall of the fixing plate is sleeved on the outer wall of the annular base. The bottom of the other fixing plate is fixedly connected to the top of the second connecting plate. The bottom of the second connecting plate is fixedly connected to a spring, and the bottom of the spring is fixedly connected to the bottom of the inner wall of the housing.

[0011] Beneficial effects

[0012] This utility model provides a self-exhausting diesel filter. It offers the following advantages: This self-exhausting diesel filter, through the cooperation of a delivery seat, exhaust port, delivery pipe, annular base, and gas-gathering ring, effectively removes gas from the diesel fuel, preventing pressure instability caused by gas accumulation inside the filter. This not only reduces the impact and vibration of pressure fluctuations on the filter element, preventing damage such as cracking and deformation, and extending the filter element's service life, but also ensures a stable and uniform flow path for diesel fuel inside the filter, guaranteeing that diesel fuel passes through the filter element fully and evenly. This significantly improves the filter element's efficiency in intercepting impurities, laying a solid foundation for stable engine operation.

[0013] By combining the oil inlet seat, connecting ring, barrier mesh, annular groove, and magnetic components, the diesel fuel is initially filtered. The magnetic components adsorb ferromagnetic impurities in the diesel fuel, effectively reducing the wear of impurities on the filter element and subsequent fuel system components, thereby improving the reliability of the entire fuel system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 An exterior schematic diagram;

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the middle conveyor seat, exhaust port, and conveying pipe;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the oil inlet seat, connecting ring, and barrier mesh.

[0018] In the diagram: 1. Housing; 2. Sealing seat; 3. Fixing ring; 4. Top cover; 5. Conveying seat; 6. Exhaust port; 7. Conveying pipe; 8. Annular base; 9. Gas-gathering ring; 10. Oil inlet seat; 11. Connecting ring; 12. Barrier mesh; 13. Annular groove; 14. Magnetic component; 15. Oil drain port; 16. Sealing ring; 17. First connecting plate; 18. Second connecting plate; 19. Filter screen; 20. Filter element; 21. Fixing plate; 22. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In actual use, air can easily get into diesel fuel during storage, transportation, and filter operation. The air accumulated inside the filter may cause unstable internal pressure. When the fuel flows, pressure fluctuations will cause additional impact and vibration to the filter element. Under such unstable pressure environment for a long time, the filter element structure is easily damaged, such as cracking or deformation, thereby reducing the filter element's filtration effect and shortening its service life. Furthermore, the presence of air will disrupt the normal flow path of diesel fuel inside the filter, preventing diesel fuel from passing through the filter element evenly. This will greatly reduce the filter element's efficiency in intercepting impurities and pose a serious threat to precision components such as the engine's high-pressure fuel pump and fuel injectors.

[0021] In view of this, the present invention provides a self-exhausting diesel filter. This self-exhausting diesel filter, through the cooperation of a delivery seat, an exhaust port, a delivery pipe, an annular base, and a gas-gathering ring, enables the exhaust of gas from diesel fuel, effectively avoiding the pressure instability caused by gas accumulation inside the filter. This not only reduces the impact and vibration of pressure fluctuations on the filter element, preventing damage such as cracking and deformation of the filter element and extending its service life, but also allows diesel fuel to maintain a stable and uniform flow path inside the filter, ensuring that diesel fuel passes through the filter element fully and evenly, significantly improving the filter element's efficiency in intercepting impurities, and laying a solid foundation for the stable operation of the engine.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Example 1, by Figure 1-4 It is known that a self-exhausting diesel filter includes a housing 1, a sealing seat 2 is snapped onto the top of the housing 1, a fixing ring 3 is fixedly connected to the top of the sealing seat 2, a top cover 4 is fixedly connected to the bottom of the sealing seat 2, the outer wall of the top cover 4 is attached to the inner wall of the housing 1, a conveying seat 5 is sleeved on the bottom of the top cover 4, an exhaust hole 6 is opened on the side wall of the conveying seat 5, a conveying pipe 7 is fixedly connected to the bottom of the conveying seat 5, an annular base 8 is fixedly connected to the side wall of the conveying seat 5, an air-gathering ring 9 is fixedly connected to the inner wall of the annular base 8, and the inner wall of the air-gathering ring 9 is attached to the outer wall of the conveying seat 5.

[0024] In the specific implementation process, it is worth noting that the shell 1 is generally cylindrical, and its material can be galvanized Q235 cold-rolled steel plate. The top opening of the shell 1 has an 'n'-shaped cross section. The sealing seat 2 is made of the same material as the shell 1, and is generally annular. It has an annular groove machined on its top, and its outer wall edge is machined into an 'u'-shaped cross section to fit with the top edge of the shell 1 for a fixing effect. The fixing ring 3 is fixed in the annular groove on the top of the sealing seat 2, and its material can be stainless steel. The top cover 4 is generally circular, and has circular through holes machined on both sides of its top. Its material can be aluminum alloy. The conveying seat 5 is located inside the shell 1, and is generally cylindrical, with a circular connection port machined at its bottom. Its material can be polyetheretherketone (PEEK). Its outer wall has vent holes 6 on both sides for conveying gas. The conveying pipe 7 is generally circular, and its interior is connected to the inner wall of the conveying seat 5. Its material is the same as the conveying seat 5. The annular base 8 is fixed to the outer wall of the conveying seat 5, and its inner wall is connected to the conveying seat 5 through the vent holes 6. The inner walls of the delivery seat 5 are interconnected, and its material can be aluminum alloy. The gas-gathering ring 9 is similar to a ring shape, which can completely fill the inner wall of the annular base 8 and completely cover the exhaust hole 6. Its material can be polytetrafluoroethylene (PTFE). In actual operation, unfiltered diesel fuel enters the interior of the housing 1 through the two through holes opened at the top of the top cover 4 and gradually fills the interior of the housing 1. Due to the 'air-permeable but liquid-impermeable' characteristics of PTFE, the gas inside the diesel fuel will first enter the interior of the gas-gathering ring 9, and from the interior of the gas-gathering ring 9, it enters the interior of the delivery seat 5 through the exhaust hole 6, and finally leaves the interior of the diesel filter through the top cover 4, thereby achieving the self-venting effect. This effectively avoids the problem of pressure instability caused by gas accumulation inside the filter. It not only reduces the impact and vibration of pressure fluctuations on the filter structure, avoids damage to the filter structure, and extends the service life of the filter structure, but also allows diesel fuel to maintain a stable and uniform flow path inside the filter, ensuring that diesel fuel passes through the filter structure fully and evenly, thereby improving the filtration effect and service life of the self-venting diesel filter.

[0025] Furthermore, both sides of the top of the top cover 4 are connected to oil inlet seats 10, and the inner walls of the two oil inlet seats 10 are fitted with connecting rings 11. The inner walls of the two connecting rings 11 are fitted with barrier nets 12. The top of the two barrier nets 12 is provided with annular grooves 13. The two annular grooves 13 are respectively opened on the inner walls of the two connecting rings 11. The outer wall grooves of the two connecting rings 11 are fixedly connected with magnetic components 14.

[0026] In the specific implementation process, it is worth noting that there are two oil inlet seats 10, which are respectively connected to the inner walls of the two through holes at the top of the top cover 4. The material of the oil inlet seat 10 can be brass. The top of the oil inlet seat 10 is trumpet-shaped, and the whole is composed of an upper seat and a lower seat. The two parts are fixed by bolts, and a sealing gasket can be added between the two parts. The connecting ring 11 is annular in shape, and its cross-section is similar to a 'T' shape. The material of the connecting ring 11 can be nylon 66. The lower part of its inner wall is machined with an annular groove with a semi-circular cross-section. The barrier mesh 12 is a circular plate in shape. Its outer shell is machined with an annular protrusion with a semi-circular cross-section. The material of the barrier mesh 12 can be stainless steel. The specific mesh size can be selected according to actual needs, as long as it meets the working requirements, for example, 40-60 mesh. The annular groove 13 has a trapezoidal cross-section and is machined on the inner wall of the connecting ring 11 to accommodate impurities in the diesel fuel. The magnetic component 14 is annular in shape and is fixed to the groove on the outer wall of the connecting ring 11. The material can be neodymium iron boron strong magnet. In actual operation, unfiltered diesel is delivered to the inside of the oil inlet seat 10 through external equipment and enters the inside of the connecting ring 11 through the oil inlet seat 10. At this time, the ferromagnetic impurities present in the diesel are attracted by the magnetic component 14. Under the attraction of the magnet and the obstruction of the barrier mesh 12, these impurities are forced to adhere to the inner wall of the annular groove 13. Then, the diesel enters the inside of the housing 1 through the oil inlet seat 10. Through the cooperation of the oil inlet seat 10, the connecting ring 11, the barrier mesh 12, the annular groove 13 and the magnetic component 14, the diesel is initially filtered, which effectively reduces the wear of impurities on the filter structure and subsequent fuel system components, thereby improving the reliability of the entire fuel system. However, due to the limited space inside the annular groove 13, after working for a period of time, the connecting ring 11 needs to be removed to clean the impurities inside the annular groove 13, thereby ensuring the flow of the connecting ring 11 and the magnetic attraction effect of the magnetic component 14.

[0027] Furthermore, an oil drain port 15 is provided at the center of the top of the top cover 4. The oil drain port 15 extends into the interior of the conveying seat 5. A sealing ring 16 is fixedly connected to the top of the conveying seat 5. The inner wall of the sealing ring 16 is fitted onto the outer wall of the top cover 4.

[0028] In the specific implementation process, it is worth noting that the oil drain port 15 is located in the center of the top cover 4 to discharge the gas flowing into the inside of the conveying seat 5, as well as the filtered diesel fuel. The sealing ring 16 is a circular ring, and its material can be fluororubber. The sealing ring 16 can seal the top cover 4 and the conveying seat 5, preventing unfiltered diesel fuel from directly passing through the inside of the conveying seat 5 and being discharged through the oil drain port 15, thereby improving the sealing and filtering effects of the self-venting diesel filter.

[0029] Example 2, by Figure 1-4It can be seen that the outer wall of the annular base 8 is fixedly connected to the first connecting plate 17, the second connecting plate 18 is provided below the first connecting plate 17, the filter screen 19 is provided between the first connecting plate 17 and the second connecting plate 18, the filter screen 19 is sleeved on the outer wall of the conveying seat 5 and the conveying pipe 7, and the outer wall of the filter screen 19 is sleeved with the filter element 20.

[0030] In the specific implementation process, it is worth noting that the first connecting plate 17 is similar to an annular plate, with a cross-section resembling two symmetrically arranged 'L' shapes. Its material can be stainless steel. The second connecting plate 18 is made of the same material as the first connecting plate 17, and its overall shape is similar to a circular plate with a cross-section resembling a 'U' shape. The filter screen 19 is generally similar to a circular ring, and its material can be stainless steel. Its mesh size can be selected according to actual needs, such as 100-120 mesh. The filter element 20 is generally similar to an annular cylinder, and its material can be glass. Glass fiber composite filter paper can be made into a folded structure to increase the filtration area. In actual operation, the diesel fuel that has undergone preliminary filtration first passes through filter element 20 for filtration. Filter element 20 can intercept impurities ≥5μm and has a strong dirt holding capacity of ≥15g. Then it undergoes secondary filtration through filter screen 19. After filtration, it enters the internal space of filter screen 19, enters the interior of conveying seat 5 through conveying pipe 7, and is finally conveyed to other locations through oil outlet 15. Therefore, through the cooperation of the above structures, the filtration effect and working stability of the self-exhausting diesel filter are guaranteed.

[0031] Furthermore, the top and bottom of the filter screen 19 and the filter element 20 are both fixedly connected to a fixing plate 21. The top of one fixing plate 21 is fixedly connected to the bottom of the first connecting plate 17, and the inner wall of the fixing plate 21 is sleeved on the outer wall of the annular base 8. The bottom of the other fixing plate 21 is fixedly connected to the top of the second connecting plate 18. The bottom of the second connecting plate 18 is fixedly connected to a spring 22, and the bottom of the spring 22 is fixedly connected to the bottom of the inner wall of the housing 1.

[0032] In the specific implementation process, it is worth noting that there are two fixing plates 21, which are similar to ring plates in shape. They are located at the top and bottom of the filter screen 19 and the filter element 20, respectively. The material of the fixing plates 21 can be stainless steel. The fixing plates 21 provide support for the filter screen 19 and the filter element 20. The material of the spring 22 can be spring steel, and its elastic coefficient can be selected according to actual needs to meet the working requirements. Through the cooperation of the above structures, the structural stability of the self-exhausting diesel filter is improved.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-exhausting diesel filter, comprising a housing (1), characterized in that: A sealing seat (2) is snapped onto the top of the housing (1). A fixing ring (3) is fixedly connected to the top of the sealing seat (2). A top cover (4) is fixedly connected to the bottom of the sealing seat (2). The outer wall of the top cover (4) is attached to the inner wall of the housing (1). A conveying seat (5) is sleeved on the bottom of the top cover (4). An exhaust hole (6) is opened on the side wall of the conveying seat (5). A conveying pipe (7) is fixedly connected to the bottom of the conveying seat (5). An annular base (8) is fixedly connected to the side wall of the conveying seat (5). An air-gathering ring (9) is fixedly connected to the inner wall of the annular base (8). The inner wall of the air-gathering ring (9) is attached to the outer wall of the conveying seat (5).

2. The self-exhausting diesel filter according to claim 1, characterized in that: The top cover (4) has oil inlet seats (10) connected to both sides of the top. The inner walls of the two oil inlet seats (10) are fitted with connecting rings (11). The inner walls of the two connecting rings (11) are fitted with barrier nets (12). The top of the two barrier nets (12) is provided with annular grooves (13). The two annular grooves (13) are respectively opened on the inner walls of the two connecting rings (11). The outer wall grooves of the two connecting rings (11) are fixedly connected with magnetic components (14).

3. A self-exhausting diesel filter according to claim 1, characterized in that: The top center of the top cover (4) is provided with an oil drain port (15), which extends into the interior of the conveying seat (5). A sealing ring (16) is fixedly connected to the top of the conveying seat (5), and the inner wall of the sealing ring (16) is sleeved on the outer wall of the top cover (4).

4. A self-exhausting diesel filter according to claim 1, characterized in that: The outer wall of the annular base (8) is fixedly connected to a first connecting plate (17), and a second connecting plate (18) is provided below the first connecting plate (17). A filter screen (19) is provided between the first connecting plate (17) and the second connecting plate (18). The filter screen (19) is sleeved on the outer wall of the conveying seat (5) and the conveying pipe (7). A filter element (20) is sleeved on the outer wall of the filter screen (19).

5. A self-exhausting diesel filter according to claim 4, characterized in that: The top and bottom of the filter screen (19) and the filter element (20) are fixedly connected to a fixing plate (21). The top of one fixing plate (21) is fixedly connected to the bottom of the first connecting plate (17), and the inner wall of the fixing plate (21) is sleeved on the outer wall of the annular base (8). The bottom of the other fixing plate (21) is fixedly connected to the top of the second connecting plate (18), and the bottom of the second connecting plate (18) is fixedly connected to a spring (22). The bottom of the spring (22) is fixedly connected to the bottom of the inner wall of the housing (1).

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